Crystal plasticity modeling of Ti-6Al-4V and its application in cyclic and fretting fatigue analysis

dc.contributor.advisor McDowell, David L.
dc.contributor.author Zhang, Ming en_US
dc.contributor.committeeMember Zhou, Min
dc.contributor.committeeMember Naresh N. Thadhani
dc.contributor.committeeMember Rami M. Haj-Ali
dc.contributor.committeeMember Neu, Richard W.
dc.contributor.department Mechanical Engineering en_US
dc.date.accessioned 2008-06-10T20:44:37Z
dc.date.available 2008-06-10T20:44:37Z
dc.date.issued 2008-03-10 en_US
dc.description.abstract Ti-6Al-4V, known for high strength-to-weight ratio and good resistance to corrosion, has been widely used in aerospace, biomedical, and high-performance sports applications. A wide range of physical and mechanical properties of Ti-6Al-4V can be achieved by varying the microstructures via deformation and recrystallization processes. The aim of this thesis is to establish a microstructure-sensitive fatigue analysis approach that can be applied in engineering applications such as fretting fatigue to permit explicit assessment of the influence of microstructure. In this thesis, crystal plasticity constitutive relations are developed to model the cyclic deformation -TiAl has beenabehavior of Ti-6Al-4V. The development of the slip bands within widely reported and has been found to play an important role in deformation and fatigue behaviors of Ti-6Al-4V. The shear enhanced model is used to simulate the formation and evolution of slip bands triggered by planar slip under static or quasi-static loading at room temperature. Fatigue Indicator Parameters (FIPs) are introduced to reflect driving force for the different crack formation mechanisms in Ti-6Al-4V. The cyclic stress-strain behavior and fretting fatigue sensitivity to microstructure and loading parameters in dual phase Ti-6Al-4V are investigated. en_US
dc.description.degree Ph.D. en_US
dc.identifier.uri http://hdl.handle.net/1853/22669
dc.publisher Georgia Institute of Technology en_US
dc.subject Crystal plasticity en_US
dc.subject Fatigue en_US
dc.subject Ti-6Al-4V en_US
dc.subject.lcsh Materials Fatigue
dc.subject.lcsh Titanium-aluminum-vanadium alloys
dc.subject.lcsh Fretting corrosion
dc.subject.lcsh Microstructure
dc.subject.lcsh Crystals Plastic properties
dc.title Crystal plasticity modeling of Ti-6Al-4V and its application in cyclic and fretting fatigue analysis en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.advisor McDowell, David L.
local.contributor.corporatename George W. Woodruff School of Mechanical Engineering
local.contributor.corporatename College of Engineering
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relation.isOrgUnitOfPublication c01ff908-c25f-439b-bf10-a074ed886bb7
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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